When a new threat emerges in National City, Kara/Supergirl (Melissa Benoist) teams up with her cousin, Clark Kent/Superman (guest star Tyler Hoechlin), to stop it. Kara is thrilled to have family in town but it leaves Alex (Chyler Leigh) feeling a bit left out. Meanwhile, Hank (David Harewood) and Supergirl are stunned by the pod that came crashing to Earth.

THE FLASH S03E02 "Paradox"

THE AFTERMATH - Barry (Grant Gustin) realizes the effects from Flashpoint are much greater than he thought. Meanwhile, Barry meets new co-worker Julian Albert (Tom Felton) and is surprised by Julian's immediate disdain for Barry.

ARROW S05E02 "The Recruits"

Oliver's (Stephen Amell) new recruits for Team Arrow are Curtis (Echo Kellum), Wild Dog (guest star Rick Gonzalez) and Evelyn Sharp (guest star Madison McLaughlin). Unfortunately, the Green Arrow's training methods prove to be too much for some of them to handle. Meanwhile, in the flashbacks, Oliver's initiation into the Bratva continues.

AGENTS OF SHIELD S04E03 "Uprising"

As Coulson, Mack and Fitz attempt to track down and neutralize a rogue group looking to end Inhuman Registration worldwide, Simmons and Dr. Radcliffe only have hours to save May before she succumbs forever to her mysterious illness.

LEGENDS OF TOMORROW S02E01 "Out of Time"

After the defeat of the immortal villain Vandal Savage and the exposure of the corrupt Time Masters, a new threat emerges. Dr. Nate Heywood (Nick Zano), an unconventional and charming historian, is thrust into the action. After making a shocking discovery, Nate seeks out Oliver Queen (guest star Stephen Amell) for help in finding the scattered Legends. Once reunited, the Legends continue their new mission to protect the timeline from temporal aberrations - unusual changes to history that spawn potentially catastrophic consequences. Their first stop is 1942 to protect Albert Einstein from being kidnapped before the Nazis destroy New York City with a nuclear bomb. Meanwhile, Ray (Brandon Routh) notices that Sara (Caity Lotz) has a mission of her own, which leads them both to face her nemesis, Damien Darhk (guest star Neal McDonough)